Watch on 123Movies. Aris, Billias, and the rest of the students decide to return to school with the excuse of earning their high school diplomas without any favors this time.Aris and Billias put their plan into action and the fun returns to everyday life.Two new teachers appear on the scene. One is a chemistry teacher who, due to a mistake, transforms into a different animal every so often, and the other is a kindergarten teacher.